An all-in-one tool to restore/downgrade, save SHSH blobs, and jailbreak legacy iOS devices
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iOS-OTA-Downgrader

(formerly 32bit-OTA-Downgrader)

Downgrade/restore iOS devices to signed OTA firmwares

  • Please see "Other notes" below to serve as answers for FAQs

Supported devices:

  • iOS 10.3.3: All A7 devices are supported except iPad4,6 iPad4,7 iPad4,8 iPad4,9
  • iOS 8.4.1: All A5, A5X, A6, and A6X devices are supported except iPhone5,3 and 5,4 (iPhone 5C)
  • iOS 6.1.3: Only iPhone 4S and iPad 2 devices are supported except iPad2,4 (iPad 2 Rev A)

Prerequisites:

  • A supported device:
    • A 32-bit iOS device (any version, jailbreak needed)
    • An A7 device (any version, jailbreak not needed)
  • An IPSW for the version you want to downgrade to (the script can also download it for you)
  • A macOS or a 64-bit Linux install/live USB (see distros tested on below) (a live USB can be easily created with tools like balenaEtcher or Rufus)
  • 32-bit users only:
  1. Download or git clone this repo
  2. Open Terminal, cd to the directory where the script is located (example: cd /home/user/iOS-OTA-Downgrader)
  3. Run chmod +x restore.sh

How to use:

  1. Plug in your iOS device
  2. Run ./restore.sh
  3. Select option to be used
  4. Follow instructions

Other notes:

  • You do NOT need blobs to use this, the script will get them for you
  • This script will verify the IPSW with SHA1sum before restoring
  • 32-bit only:
    • This script does not modify the IPSW
    • To devices with baseband, this script will restore your device with the latest baseband
    • This script has a workaround for the activation error on devices downgrading from iOS 10
    • This script uses futurerestore "Odysseus method" for downgrading (different from OdysseusOTA/2, which are deprecated)
    • This script only uses iBSS patches for entering kDFU mode
    • This script can also be used to just enter kDFU mode for all supported devices
    • This script can also be used to futurerestore to other iOS versions with provided SHSH blobs
    • This script can work on virtual machines, but I won't provide support for them

OS versions/distros tested on:

Tools and other stuff used by this script: